i bought the pack from another website a while ago just because i wanted a backpack to transport airsoft equipment in for under $50. it wasn't quite as sturdy as other tactical back packs i've handled, and i honestly wouldn't use it to bear a load over 40 pounds. but if you're planning on humping that much gear for airsoft, then you're insane anyways. i accidentally ordered two, and i observed some inconsistencies: standard stuff, some stitchings weren't exactly the same, the MOLLE/PALS webbings were too wide or too narrow, but nothing that i didn't expect. i mean, it is only $30. my main complaint for this particular pack is that there's no way to wear it comfortably with a chest rig or plate carrier. the shoulder straps aren't padded enough, and the edges are almost sharp. the backpack features a waist and sternum strap. the sternum strap is removable, and a little annoying because it moves up and down freely along the straps, so i just took it off. the waist strap, however, you're stuck with. there are straps on all four of the side pockets with buckles. another nice feature are the buckles near the bottom of the shoulder straps that allow you to remove the pack without having to swing it around.
cheap, but not terrible.
plenty of space
lots of pockets
not sturdy enough for heavy use
i would have prefered MOLLE on the sides instead of side pockets.
i don't see a way to feed a hydration carrier tube through the allotted opening without doing some cutting, or unscrewing the tube and feeding it into the pack and screwing it back onto the bladder inside.
honestly nothing unexpected since it's a cheap pack.